Clamp insulator



FIG. 1 is a left, front, top perspective view of a clamp insulator showing our new design;

FIG. 2 is a left, back, bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design. 

CLAIM The ornamental design for a clamp insulator, as shown and described. 